The M- phase checkpoint is designed to make sure all chromosomes are attached to the mitotic spindle. If this fails to happen, in which stage of mitosis would the cells be most likely to arrest?
A) prometaphase
B) metaphase
C) telophase
D) prophase

Question

Quizplus · Accepted Answer

The M-phase checkpoint ensures that all chromosomes are properly attached to the mitotic spindle before cell division proceeds. This step happens during metaphase, where chromosomes are lined up along the equator of the cell and attached to the spindle fibers. Therefore, if the chromosomes are not properly attached at this stage, the cells would most likely arrest at metaphase until the issue is resolved.

The M- Phase Checkpoint Is Designed to Make Sure All